Pulling-over machine.



0. ASHTON.

PULLING-OVER MACHINE. APPLICATION FILED AUG. 2, 1907.

Patented Nov. 7, 1911.

2 SHEETS-SHEET 1.

0. ASHTON.

PULLING-OVER MACHINE. 4PPLIOATION FILED AUG. 2, 1907.

1,007,766. Patented Nov. 7, 1911.

2 SHEETSSHEET 2.

Jig. 6.

' procedure means is usually employed for UNITED STATES PATENT OFFICE.

ORRELL ASHTON, OF LAWRENGE, MASSACHUSETTS, ASSIGNOR TO UNITED MA-CHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PULLING-OVER MACHINE,

Specification of Letters Patent.

Patented Nov. '7, 1911.

Application filed August 2, 1907. Serial No. 386,799.

To all whom it may concern:

Be it known that I, ORRELL AsH'roN, a citizen of the United States,residing at Lawrence, in the county of Essex and Commonwealth ofMassachusetts, have invented. certain Improvements in Pulling-OverMachines, of which the following description,

in connection with the accompanying draw- 7 ings, is a specification,like reference characters' on the drawings indicating like parts in theseveral figures.

This invention relates to machines for use in the manufacture of bootsand shoes and particularly, to mechanism for working an upper over. alast.

The invention is herein shown as embodied in the upper pulling'andholding mechanism of a pulling-over machine of the type shown in United-States Letters Patent No. 663,777, granted on the application of RonaldF. McFeely, but the invention is applicable also to other machines.

In working an upper over a last, particularly if the upper is not largeenough to overlap the bottom of the last for a considerable distance, itis desirable that the grippers release the upper and withdraw to giveplace to the tacking mechanism before the tacks. are driven for securingthe upper in overworked position. To permit this holding the upper toprevent it from slipping back during the interval between its release bythe grippers and the insertion ofthe tacks.

Another object of this invention is to provide improved means forholding the upper and for pressing it into position to be secured. Itfrequently happens in pulling shoes having small uppers that thegrippers,

especially the forward grippers engaglng the tip seam, are little if anyabove the plane of the shoe bottom when the upper has been pulled. It istherefore advanta= geous to hold the upper by means which does notnecessarily extend above the plane of the shoe bottom orextend over thebottom of the shoe and can clamp the upper against the side of the lasteven though the grippers occupy the position described. It is important,however, that the upper be eventually pressed down upon the last bot tomor upon the innersole to force it into position to be fastened by thesecuring tacks.- I have provided according to one feature of thisinvention upper holding means against the side of the last atandadjacent to the edgeof the last. Preferably there is provided incombination with this upper holding means a presser arranged to occupy aposition back of the upper engaging face of/the clamp when the latter ismoved into holding position and adapted to'be actuated over the lastbottom after the grippers have released the upper. With this devicearranged as described the upper is secured by the clamp'before thegrippers need to be withdrawn to permit the presser to come. intooperative position. The front and rear pairs of gripper jaws are usuallyspaced apart a short distance, thus permitting free-v dom of relativemovement of the pairs of jaws. The presser is preferably arrangedrelatively to said aws to act upon and wipe as well as press intooverworked position the portion of upper between the front and rearpairs of jaws. The presser is shown to be of less width than the spacebetween 'the securing tacks and as located between the tacks andextending over the shoebottom beyond said tacks. With this arrangement anarrow presser satisfactorily forces the upper into position to besecured.

These and other features of the invention will be more fully explainedin the following description and then pointed out in the 1 relativepositions of the grippers, the

-.with t e present invention and showing the clamps, and the presserswhile the grippers are pulling the upper, the clamps being in aretracted position out of contact with the shoe to leave the upper freeto be stretched about the last. Fig. 2 is a view on a larger scale ofthe parts concerned with this invention, and shows the clamps inengagement with the upper while the grippers still retain their holdupon-it. Fig. 3 is a similhr View after the grippers have released theupper and the presser has been advanced into. operative position. Fig. 41s a perspective view showing the relative positionsof the partsimmediately after the securing tacks havebeen driven and before thepresser and clamp are retracted. Fig.

5 is a side elevation of the grippers partly in section; Fig. 6 is asection on line 66 of, Fig. 5; Fig. 7 is a section on line 77 of Fig. 5;Fig. 8 is a section on line 8--8 of Fig. 6; Fig. 9 is a detail view of amodi-' fication taken in the same plane as Fig. 6.

The frame 2, which may be the frame of the pulling-over machine shown insaidLetters Patent No. 663,777, supports levers 4 that are fulcrumed at5 and from which are suspended bars 6 as shown in Figs. 1 and 5. Thereare in the machine sets of grippers for engaging the upper at oppositesides of the last which is held from displacement byv a sole rest 7while the upper, is being pulled. A. set of grippers is-illustrated inFig. 5 and comprises a plurality of pairs of jaws connected throughcasings 8 and'9 with the one operating bar 6. One jaw 10 of each pair ofjaws is pivotally connected to its casing while the'other jaw 11 of eachpair is rigidly attached to the casing which is invention.

shaped to receive it between two edge plates 12, theadj-acent facesof'which may be corrugated to fit similar corrugations on the edges ofthe jaw. The jaw is clamped between the edge plates by a connectingmember- 14, shown best in Fig. 8, which has a conical head fitting asimilarly shaped recess in one edge plate. It also has screw threadedengagement with a tapering looking member 15 that is split at 16 so thatit will be contracted and, looked upon the holding member as it is drawninto its conical recess in the casing; The construction thus fardescribed is'not a part of the present The gripping faces of each of thejaws 10 and 11 are formed by alternate teeth or ribs 20 and plane faces22 which are so arranged .in the assembled Jgrippers' that the teeth orribs on the jaw 10 will'be opposed to the plane faces on the jaw 11 andthe teeth or ribs on the jaw 11 w' bite or indent the stock against theplane -/faces on the jaw 10. The lower tooth or ri 25 of the jaw 10,which engages the outer side of the upper leather, is rounded or bluntso that it will.

not scrape or scar the upper as the stock jaws release their grip 3Othroughwhich the j aw 10 is first rocked to grip the stock and then,when it can rock no farther, the two jaws are uplifted to pull thestock. For. this purpose the controller shown in'Fig. 6, which is asection through the casing 8 and the forward pair of jaws. The othercontroller is the same. A cross bar 35 is secured to the controller forthe rear pair of jaws and extends across to the othercontroller where itis received between ledges 36 on the outer side of the controller. Thecross bar is notched to provide a narrow portion forming a lost motionconnection with the controller for the forward jaw. The operating barhas a depending hook 38 which engages the middle portion of the crossbauand through which the controlling devices are lifted for closing andthen raising the jaws. By reason of the lost motion connection the rearjaws are closed and raised to pull the upper about the ball of the lastto a predetermined extent before the forward jaws are closed and raisedto pull the upper in the region of the toe tip seam. If desired, theextent of the relative movement of the pairs of jawsmay be adjustablyvaried, as, for example, by provid ing'the reduced portion ofthe crossbar 35 withan adjustable contact member 39, as shown in-Fig. 9. D

After the upper has been pulled it is to be secured tothe innersole bytacks,'and last supporters 45 are provided which are actuated from thepositions shown in Fig. 1 into the position shown in Fig. 3 to sustainthe last against the impact of the tackingdevices. It is desirable thatthe grippers be moved out of-the way of the tacking devices,particularly when the uppers are small so that'the marginal edge of theupper does not extend far over the edge of the last and allow of thejaws being carried inwardly far enough while holding to the upper togive room for the tacking devices to work. Be-

fore the jaws can release the upper it is of course necessary to clampit to prevent it the last supporter with a slide 50 upon which the clampis mounted. The clamp is a block syviveled in itsslide and long enough-to engage a considerable portion of up er. The block preferably has apactingace formed to have continuous or substantially continuous contactwith the upper through: out its length from front to rear and ar; rangedto pinch. or grip the upper against the side of the last below thegripper jaws: The clamp is mounted in a plane with rela-v tion to thesole rest 7 and the last supporters 45 so that it is locatedfbelow thelast bot- 'tom. By reason of this fact the clamp can come into positionto pinch the upper istic of the clamp is that it does not include rangedintermediate the two any portionor member which projects in advance ofit to extend over the last bottom and which would interfere with theclamp coming into holding position if the grippers did not carry theupper over the last bottom, as for example, under the conditionsillustrated in Fig. 2.

A presser 55 is'employed for forming the upper over the last bottom andpressing it down upon the innersole into position to receive thesecuring tacks. This presser is secured to the lower face of the tackcarrying arm 56 by the bolt 57, which also passes 'through a slottedplate 58 which rides over the clamp slide 50 and engages a stop face 59on the back of the clamp to determine the position with relation to theedge of the last at which the tacks shall be driven by the tackingdevices. The tack arm is arranged to engage a tripping device 60 carriedby one of the controlling devices ,of the grippers to disengage the hook38 from the crossbar 35 and permit thejaws to open for allowing theupper to pull out of them as the grippers swing inwardly in advance ofthe tack arms. The presser is arpairs of gripper jaws so that it mayengage and wipe inwardly the portion of stock between the pairs of jawswhich has not'been subjected to the same straining as the portions ofstock directly engaged by the aws. To this end the presser is formed asa relatively narrow finger and the fastening tacks are driven atopposite sides of it as shown in Fig. 4.

In the use of the invention'in the form in which it is shown asembodied, a shoe is presented with the bottom against the sole rest' 7and the upper between the jaws of the open grippers. The operating barsare then raised. The first effect is to close the rear jaws which engagethe belt of upper extending about the last at the base of the instep andback of the position of the toe tip seam. As soon as these j awsareclosed they are uplifted and pull the upper about. this portion of thelast; When these jaws have moved through a predetermined distancegoverned by the extent of lost motion between the cross bar 35 and theledges 36, and

have initially pulled the upper back of the toe tip seam, then theforward pair of jaws is closed and thereafter uplifted to-pull the upperin the region of the tip seam. The last supporters then move inwardlyand set the side clamps against the sides of the last below the plane ofthe last bottom to grip.

the upper and prevent it from slipping back. The tack arms next swinginwardly,

releasing the grippers which retire as the arms advance. The pressersreach the edge of the last after the grippers are released and move overthe edge and bottom of the last as the arms swing inwardly wiping overthe upper that was between the pairs of jaws and pressing the upperagainst the innersole into position to receive the fastening tacks,which are then driven, after which the parts may return to startingposition. It will of course be understood that while for the purpose ofexplanation this invention is here shown as applied to the machine ofsaid Letters Patent No. 663,7 77 for which it was especially devised, itmay also be used in other machines.

Having disclosed the nature of the invention and described aconstruction embodying the same in the best form now known to me, Iclaim as new and desire to secure by Letters Patent of the UnitedStates:

1. In a machine of the class described having duplicate devices foroperating upon oppos te sides of the shoe at the same time, thecombination with grippers for pulling an upper over a last, and tackingmechanism for fastening the upper,-of means for releasing the' grippersfrom the upper before the tacks are driven, and'means suitably actuatedto clamp the upper against the side edge of the last before the grippersare released and arranged for holding the upper while the tacks arebeing driven, said latter means being located entirely below the planeof the last bottom and formed to engage an extended area of the upperalong the edge of the last.

2. In a machine of the class described having dupiicate faces foroperating upon opposite sides of the shoe at the same time, thecombination with grippers for pulling an upper over a last, and tackingmechanism for fastening the upper, of means for releasing the grippersfrom the upper before the tacks are driven, and means for holding theupper while the tacks are being driven, said latter means being locatedwholly below the level of the last bottom and comprising a block havingan uninterrupted acting face for engaging an extended area of the upperon the side of the shoe, and. means movable over the last bottom betweenthe'clamping and the gripper releasing movements to wipe the upper intoposition to be tacked.

3. In a machine of the class described, the combination with two pairsof gripper jaws for engaging adjacent portions of an upper and pullingit over a last, tacking mechanism for securing said portions of upper,means to release the jaws before the tacks are driven, means forclamping the upper to hold it until the tacks are driven, and meansoperatively connected with the tacking mechanism to be actuated therebyand constructed and arranged to. wipe over the and pullingit over alast,tacln'ngmec a-.

nism for securing "said portions Iof upp r,

means to release the jaws lgefolies the?tacks are driven, means forclamping tli aipperito holdigthe upper.

hold it until the tacks are driven ,:akpresser independent of theclamping means, and means for actuating the presser over the last bottomafter the clamp has come into holding engagement with the upper, saidparts being constructed and arranged to cause the. presser to advanceand the jaws to be then released during the movement of the tackingmechanism into driving position.

5. In a machine of the class described, the combination with tWo pairsof gripper jaws for engaging adjacent portions of an upper and pullingit over a. last, tacking mechanism for securing each of said portions ofupper, and a wiper constructed and arranged to advance over. the shoebottom between the tacking points in advance of the tack drivingoperation for working the portion of upper located between the pairs ofjaws over the innersole into position for the upper to be secured.

6. In a machine of the class described the combination with two pairs ofgripper aws having their adjacent edges spaced apart, of the tackerhaving a driver opposite to each pair of jaws and a wiper 55 arranged toadvance between the pairs of jaws for the purpose described.

7. In a machine of the'class described, the combination with thegrippers of the tacker having the wiper- 55 to slide over the shoebottom in rubbing contact 'with the upper, and the side clamp comprisingthe last supporter. and the upper clamping member lS connected byzanequalizer and both located below the-k'plane of the wiper for thepurpose described.

about an axis pe bottom and having a ong upper clamping 'andthe sideclamp comprising the slide and the block 48 swiveled on the slide toendicular to the shoe face;=.1extenc1ing along the edge of the last to9. 71In a machineof the class described, the

combination with the grip ers of the tacker having the wiper to shdeover the shoe bottom in rubbing contact with the upper and the sideclamp comprising the block 48 having a long acting face extendinglongitudinally of the shoe edge to pinch or grip the upper against theside of the last below the wiper,and the slide 5O in which the block 48is swiveled to allow it to have substantially continuous bearing on theshoe throughout the length of its acting face, substantially asdescribed.

l0. In'a machine of the class'described,

the combination with the grippers of the double tacker, the wipersecured to the lower face of the tacker'and presenting a narrow tongue55 arranged between the two tack inserting points, a slotted plate 58underlying the wiper and adjustably attached to the tacker by the samefastening, and the side clamp block 48 engaging the side face only ofthe shoe and having the abutment 59 for engagement by the end ofsaidplate 58 to limit the advance of the wiper and the tacker over theshoe bottom and cause the side clamp block to pinch the upper againstthe side of the last with the force overcome in stopping the tacker.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ORRELL ASHTON.

Witnesses:

ARTHUR L. RUSSELL, ELIZABETH C. COUPE.

Qosrecticfls in Letters Patent No. 1,007,766.

l Letters Patent should be read with these corrections therein that Itis hereby certified that in Letters Patent No. 1,007,766, grantedNovember 7,

1911, upon the application of Orrell Ashton, of Lawrence, Massachusetts,for animprovement in Pulling-Over Machines, errors appear in the printedspecification requiring correction as follows: Page 3, line 13, for theword forming read forcing, came page, line 104, for the Word faces readdem'ces, and that the said conform to the record of the case in thePatent Ofice.

Signed and sealed this 5th day of Decemher, A. D., 1911."

[SEAL] C. C. BILLINGS,

Acting Gammissz'oner of Patents.

the same may

